# Additel Link vs MachBackflow

Additel Link and MachBackflow both sit at 5.0 stars, but that hides the real split: 100% of MachBackflow's written reviews are positive against 0% of Additel Link's. Additel Link's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. MachBackflow sells 3 one-off in-app purchases. Additel Link asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Additel Link against 5.0 for MachBackflow. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews are what separate them: 0% of Additel Link's written reviews are positive against 100% of MachBackflow's.

Additel Link ships an update every 6 weeks, MachBackflow every 2 months. The most recent releases landed on September 3, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Additel Link | MachBackflow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/additel-link/id1384771634/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/machbackflow/id6448785820/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 146 MB | 18 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Additel Corp.](https://appshunter.io/developer/1384771633) | [WTM Solutions, LLC](https://appshunter.io/developer/1673242880) |

## What reviewers say

### Additel Link

[App page](https://appshunter.io/ios/app/additel-link/id1384771634)

This utility software connects to smart instruments via Bluetooth or network for remote monitoring, control, and data download. It simplifies traditional calibration tests, making them more efficient and digital.

**Highlights:** Remote monitoring and control, Data download and logging, Bluetooth and network connectivity, Simplified calibration tests, Real-time data display, Device status and information

**Features:** Vision Pro support

**In-app purchases:** none


### MachBackflow

[App page](https://appshunter.io/ios/app/machbackflow/id6448785820)

This app streamlines backflow prevention assembly testing by capturing real-time pressure readings or allowing manual entry. It automatically generates accurate reports and manages all your tests efficiently from the field.

**Highlights:** Real-time pressure capture, Supports all assembly types and procedures, Autofill property and assembly information, Accurate, error-free PDF reports, Cloud synchronization, Powerful search and filters

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Credits 10 | $24.99 | one-time |
| Credits 100 | $174.99 | one-time |
| Credits 250 | $299.99 | one-time |


## Frequently asked questions

### Is Additel Link free?

Additel Link is free to download, with no in-app purchases.

### Is MachBackflow free?

MachBackflow is free to download, with in-app purchases available.

### Which has better reviews, Additel Link or MachBackflow?

Additel Link and MachBackflow are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.

### Do Additel Link or MachBackflow have ads?

Neither Additel Link nor MachBackflow shows ads.

### Which is updated more often, Additel Link or MachBackflow?

Additel Link ships an update every 6 weeks, and MachBackflow every 2 months. Most recently, Additel Link was updated on September 3, 2026 and MachBackflow on June 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*